646323046 has 8 divisors (see below), whose sum is σ = 1011636144. Its totient is φ = 309111000.

The previous prime is 646323031. The next prime is 646323047. The reversal of 646323046 is 640323646.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646323047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7025205 + ... + 7025296.

It is an arithmetic number, because the mean of its divisors is an integer number (126454518).

Almost surely, 2^646323046 is an apocalyptic number.

646323046 is a deficient number, since it is larger than the sum of its proper divisors (365313098).

646323046 is a wasteful number, since it uses less digits than its factorization.

646323046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14050526.

The product of its (nonzero) digits is 62208, while the sum is 34.

The square root of 646323046 is about 25422.8842974199. The cubic root of 646323046 is about 864.6026201050.

The spelling of 646323046 in words is "six hundred forty-six million, three hundred twenty-three thousand, forty-six".